Version: (using KDE 4.4.0) Installed from: Slackware Packages If you put the lock/logout widget on a vertical panel, and disable one of the two default buttons so only one button is displayed, the button will be smaller than other icons in the panel and centered in the middle. It looks like it is using spacers left and right, since when the panel is resized to a certain width it shows as big as standard icons.
Most likely the same as bug 232648
yep, same bug
*** This bug has been marked as a duplicate of bug 232648 ***